GB - User’s manual C.
Thank you for purchasing this C.A 1246 thermo-hygrometer. For best results from your instrument: read these operating instructions carefully, comply with the precautions for use. Information or useful tip. Battery. Magnet. The product is declared recyclable following an analysis of the life cycle in accordance with standard ISO 14040. Chauvin Arnoux has adopted an Eco-Design approach in order to design this appliance.
CONTENTS 1. FIRST USE................................................................................................................................................................................. 4 1.1. Delivery condition............................................................................................................................................................ 4 1.2. Accessories.................................................................................................................
1. FIRST USE 1.1. DELIVERY CONDITION Thermo-hygrometer C.A 1246 Supplied in a cardboard box with: three AA or LR6 alkaline batteries, one USB-micro USB cord, one multilingual getting started guide, one multilingual safety data sheet, one test report, one carrying case. 1.2. ACCESSORIES Cartridge of salt at 33% RH Cartridge of salt at 75% RH Multi-purpose attachment accessory Carrying bag. USB-Bluetooth adapter USB-mains adapter with USB-micro USB cord.
1.4. INSERTING THE BATTERIES Notches to hang up the instrument. Non-skid pads Magnet for attachment to a metallic surface. Battery compartment cover. Press the tab of the battery compartment cover and lift it clear. Withdraw the battery compartment cover. Insert the new batteries, paying attention to the polarity. Close the battery compartment cover; make sure that it is completely and correctly closed.
2. PRESENTATION OF THE INSTRUMENT 2.1. C.A 1246 Cap protecting the sensor. Temperature and humidity sensor. C.A 1246 THERMO-HYGROMETER Backlit LCD display unit. Keypad with 5 keys. °C / °F MEM HOLD REC MAX MIN On/Off key. Type B micro-USB connector.
2.2. FUNCTIONS OF THE INSTRUMENT The C.A 1246 is a thermo-hygrometer. It is used to measure temperatures from -10 to +60°C and relative humidity from 3 to 98% RH. This instrument is easy to use. It has extensive stand-alone capabilities and can display: temperature measurements in °C or in °F, to record a minimum and a maximum in a specified period, to record the measurements, to communicate with a PC via a Bluetooth link or a USB cable.
2.5. DISPLAY P RH Dp T MAX MIN RH T Dp MIN MAX REC MEM FULL HOLD MEM % Secondary display unit. % Main display unit. When the measurement exceeds the limits (positive or negative), the instrument displays OL. P : indicates that auto-off is disabled and the instrument is in permanent mode.
3. USE IN STAND-ALONE MODE The instrument can operate in two modes: the stand-alone mode described in this section, the record mode, in which it is controlled by a PC. This mode is described in the next section. 3.1. TEMPERATURE AND HUMIDITY MEASUREMENT Remove the cap protecting the sensor. Long-press the key to switch the instrument on. The instrument displays the time, then the measurement. The time is set using the Data Logger Transfer software (see §4).
The MAX MIN key can be pressed to monitor the minimum and maximum values. Press the key a second time and the instrument displays the maximum (on both display units). A third press and the instrument displays the minimum. A fourth press and it returns to the current values. To exit from the MAX MIN mode, long-press the MAX MIN key. P RH MAX MIN MIN MAX P % MIN MAX % RH MAX MAX MIN T P MAX MIN RH MIN MAX % MIN T T MAX MIN Pressing the HOLD key freezes the display.
4. USE IN RECORDING MODE The instrument can operate in two modes: the stand-alone mode described in the previous section, the record mode, in which it is controlled by a PC. This mode is described below. 4.1. CONNECTION The device has 2 communication modes: A USB link via a USB-micro USB cord, A Bluetooth 4.0 BLE wireless link. 4.2. GET DATA LOGGER TRANSFER SOFTWARE Visit our web site to download the latest version of the application software: www.chauvin-arnoux.
4.4. BLUETOOTH LINK The instrument has a low-energy Bluetooth 4.0 link that requires no pairing. Activate Bluetooth on your PC. If your PC does not have a Bluetooth link, you can add a board or Bluetooth adapter connected to a USB port (see §1.2). Since Windows 7 does not manage low-energy Bluetooth, a specific USB/Bluetooth adapter must be used (see §1.2). Switch the instrument on by a long press on the symbol is displayed. key, then activate the Bluetooth link by a long press on the key.
4.5.2. DATE AND HOUR The Instrument menu lets you set the your instrument’s date and time. These cannot be changed while recording or when a recording session has been scheduled. By clicking , you can choose the date and time display formats. 4.5.3. AUTO OFF As default, the instrument switches itself off automatically after 3 minutes of operation without the user’s presence being confirmed by a key-press. By clicking , you can change this value to 3, 10, or 15 minutes.
Before starting a recording session, make sure that the battery life is sufficient, or else connect the instrument to an external power supply to a wall outlet using a micro USB cord. 4.5.5. DISPLAY By clicking on , then opening the Thermo-hygrometer tab, you can modify the display of the measurements on the instrument in the same way as you can by pressing the or °C/°F keys. 4.5.6.
4.5.10. REAL-TIME MODE Click Real-time data under the name of your instrument to see the measurements being made on the instrument as they are made. 4.5.11. FORMATTING THE MEMORY OF THE INSTRUMENT The internal memory of the instrument is already formatted. But if there is a problem (if it becomes impossible to read or to write), it may be necessary to reformat it (in Windows). In this case, all of the data will be lost.
5. TECHNICAL CHARACTERISTICS 5.1. REFERENCE CONDITIONS Quantity of influence Reference values Temperature 23 ± 2°C Relative humidity 45% to 75% Supply voltage 3 to 4.5V Electric field < 1V/m Magnetic field < 40A/m The intrinsic uncertainty is the error specified for the reference conditions. 5.2. ELECTRICAL CHARACTERISTICS 5.2.1. TEMPERATURE MEASUREMENTS Specified measurement range Resolution Intrinsic uncertainty - 10 to + 60°C 14 to + 140°F Display in °C: 0.1°C Display in °F: 0.
5.2.4. PSYCHROMETRIC DIAGRAM The atmospheric air that surrounds us is a mixture of: dry air, and water vapour, generally invisible, that may be found in liquid form (condensation). There exists on the quantity of water vapour (or absolute humidity) a limiting value beyond which any additional quantity of water vapour immediately turns into liquid water. This phenomenon is known as “saturation” and is the cause of fog, dew, and condensation on cold surfaces that cool the air in contact with them.
5.2.5.
5.6. POWER SUPPLY The instrument is supplied by three 1.5V LR6 or AA alkaline batteries. It is possible to replace the batteries by rechargeable NiMH batteries of the same size. But the rechargeable batteries, even when correctly charged, will not reach the voltage of the alkaline batteries and the life indicated will be or . The voltage range ensuring correct operation is from 3 to 4.5V for the alkaline batteries and 3.6V for the rechargeable batteries.
6. MAINTENANCE Except for the batteries, the instrument contains no parts that can be replaced by personnel who have not been specially trained and accredited. Any unauthorized repair or replacement of a part by an “equivalent” may gravely impair safety. 6.1. CLEANING Switch the instrument off. Use a soft cloth, dampened with soapy water. Rinse with a damp cloth and dry rapidly with a dry cloth or forced air. Do not use alcohol, solvents, or hydrocarbons. 6.2.
Embedded software update procedure Download the .bin file from our web site, then press and hold the MEM key and switch the instrument on by pressing the key. The instrument displays BOOT. MEM + REC Release the keys and the instrument displays COPY, indicating that it is ready to receive the new software. Connect the instrument to your PC using the USB cord provided. Copy the .bin file to the instrument as if were a USB key.
7. WARRANTY Except as otherwise stated, our warranty is valid for 24 months starting from the date on which the equipment was sold. Extract from our General Conditions of Sale provided on request.
© Chauvin Arnoux - All rights reserved and reproduction prohibited 694942A02 - Ed. 2 - 04/2017 FRANCE Chauvin Arnoux Group 190, rue Championnet 75876 PARIS Cedex 18 Tél : +33 1 44 85 44 85 Fax : +33 1 46 27 73 89 info@chauvin-arnoux.com www.chauvin-arnoux.com INTERNATIONAL Chauvin Arnoux Group Tél : +33 1 44 85 44 38 Fax : +33 1 46 27 95 69 Our international contacts www.chauvin-arnoux.
